What is 1/8 + 2/10?

Here's how to add

1

8

&plus;

2

10

Step 1

We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator.

Now we multiply 1 by 10, and get 10, then we multiply 8 by 10 and get 80.

Now for the second term. You multiply 2 by 8, and get 16, then multiply 8 by 10 and get 80.

This gives us a new problem that looks like so:

10

80

&plus;

16

80

Step 2

Since our denominators match, we can add the numerators.

10 &plus; 16 = 26

So what's the answer so far?

26

80

Step 3

Can this fraction be reduced?

First, we attempt to divide it by 2...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it: